tax 01 elementary math

1.0	Elementary mathematics
1.1	Numbers
1.2	Arithmetic
1.3	Patterns and sequences
1.4	Shapes and figures
1.5	Measurement

1.3 Patterns and Sequences
1.3.1 Geometric Patterns
1.3.2 Tilings and Tessellations
1.3.3 Golden Ratio
1.3.4 Fibonacci Sequence
1.3.5 Arithmetic Sequence
1.3.6 Geometric Sequence
1.4 Shapes and Figures
1.4.1 Plane shapes
1.4.2 Spatial Sense
1.4.3 Symmetry
1.4.4 Similar Figures
1.4.5 Solid Shapes
1.5 Measurement
1.5.1 Units of Measurement
1.5.1.1 Metric System
1.5.1.2 Standard Units
1.5.2 Linear Measure
1.5.2.1 Distance
1.5.2.2 Circumference
1.5.2.3 Perimeter
1.5.2.4 Scale
1.5.3 Area
1.5.3.1 Area of Polygons
1.5.3.2 Area of Circles
1.5.3.3 Surface Area
1.5.4 Volume